<!doctypehtml>
<html style=width:99%;height:99%>
<meta charset=UTF-8>
<title>pdf</title>
<link href="{{ url_for('static', filename='favicon.ico') }}" rel=icon type=image/x-icon>
<body style=width:100%;height:100%;margin:0;padding:0>
<iframe class=frame_style height=100%
        src="http://127.0.0.1:5000/static/pdfjs/web/viewer.html?file=\static\upload\doc\index.pdf" width=100%></iframe>